Ash tank



Aug. 21, 1923.

A. P. STRONG ASH TANK Filed Dec. 12 1921 Patented Aug. 21,1923;

TJUNITEDTSTATES ARTHUR, rxs'rnoneior CHICAGO, itnrnors. ASSIGNOR 'roeannnniqernanaine COMPANY, ornasrr' cn'roaeo, runaways;conroaji rron,onILLINOIS,

I application filed December To all whom it may concern."

. Beit known that I, An'rrrtm P. STRONG, a citizen of theUnited States,residing at Chicago, in the county of Cook and State of Illinois, haveinvented new and useful Improvements in Ash Tanks, of which thefollowing is a specification. This invention relates to metal hoppersand tanks for the collectionand disposal of ashand other disintegratedmaterials.

Storage .tanks of the type having their walls made of removably mount-edsectional plates are not adaptable, as thus-made, for use insystemswherein the'ash or othermaterial is moved through the pipelinesby suction on the tanks because the joints between the plates are notsealed against the passage ofiair into the tank.

One object of my inventionis to provide means in connection with tanksof this gen eral type whereby they are rendered substantially air tightand thus adaptable to use in pneumatic systems of the kind mentioned. VAnother object of my invention is toaccomplish this purpose by providingthetank V with an outside imperforate wall, thusmaking the tank of adouble wall structure.

A further object of my invention is to employ the imperforate wall asameans for preventing the tank structure from swaying during thebuilding of the sectional in-- side wall, and thus avoid the use ofcross ties as heretofore.

The invention consists furtherin the matters hereinafter described andmore particularly set forth in the appended claims.

' In the accompanyingdrawings-g Fig. l isa side elevational view of astorage tank or hopper constructed in accord ance with my invention; Y

F ig. 2 is an enlarged vertical sectional view taken through the tank;and

Fig. 3 is a horizontal sectional view through one of the upright cornersof the tank, taken on line 33-of Fig. 2,. V

In the drawings, I. have shown a storage tank or hopper of the typehaving upright side and end walls and a hopper bottom providedwith agate controlled discharge opening, as customary in structures of thisgeneral kind.- The tankor hopper is usually elevated or supported abovethe ground or platform, as the case maybe, at the dis tancerequired topermit emptying of the TANK.

-12, 1921. Seria1 No.. 521 ,964.

tank into afcar these-me. .7 i

'As shown in Fig. 1, the structure includes a plurality of u rightsupporting 'posts 1, 1 at the four corners of :the tank. and extendingupward the samev distance. 7 These posts support at their upper ends.ahorizontal base frame 2, from which rise a pluor truck whenmoved'underfl': I

ralityof upright I-beams 3, 3 laterally a spaced apart and formingaportion' of the upright side and end walls of the'tank.

Extending between and secured tosaid' I-beams 3, 3 are cross-members 4,.4;horijzontally arranged and spaced apartvertically;

The cross-membersfS, 3'are of-channel shape to accommodate the hooksj5of-plate supporting bars or members 6'. 'These bars 6X? tend downwardand are channeled along their side edges to receive and support theplates 7 7 which form the inner wall of the tank. This construction is'substantially like that disclosed in Patent N 1,243,873, granted October23, 1917, to; H. A. Poppenhusen and myself, and needs'no furtherdescription herein, except to remark that the plates? 7 in the variousvertical rows over-F lap each other along their upper and lower, edges,respectively, on the inside=of the wall and have a sliding connectionwiththe members 6 so that the inner 'wallf o'f the tank may. be built upand, further, bereadily taken apartfor repair. p

To adapt such type of tank orhopper to a suction type of system, thatis, a system" wherein, the ash, or other material being I v a suction onthe tank, I havecncased the sectional wall of the tankinan imperforatecasing so as to make the tank substantially air tight to hold a suction.This casing is arranged outsideof the sectional inner wall: andcomprises a pluralityof plates 8, 8 for the upright .wall of the tankand similar plates 9, 9 for the hopper bottom. .In the upright wall ofthe tank, the plates 8, 8;; are arrangedin horizontal and vertical rowsand havctheir side 'edges'rivetedor l I otherwise rigidly v secured tothe upright members or I-bean1s 3, 3"on the outs de thereof, asShOWILlnlthQ drawings.- The uppermost-plates 8,8 have their upper edgesriveted or otherwise; secured to the frame 7 member lllextending aboutthe top of the tankand from which the uppermost plates 7 of the innerwalls are suspended, as shown of the system, and at one side of thecenteris a pipe 1 whereby the required suction maybe placed on the tankfor-conveying the material from the pipe line into the tank, as

"customary in -ash conveying and like -s'ys terns of suction type. V Y

The lowermostplates 8, 8 oi"? theupright marginal wall of the tank havetheir'lower edges riveted or otherwise secured to a channel member 15 ontop ofthe I-beams'of the base frame 2 and" from this-member rise theuprights'fi, as shown in' Fig. 2. The uppermost plates 7 7 forming .theinside of the hopper bottom are suspended from me1n here 16 associatedwith this channel meniher'15.

The uppermost outside plates 9 of the hopper bottom are flangedoutward,- as it 17, and are secured to the under side of the Lbeams (a?the base member 2-, as shown in Fig. 2Q The base member 2thus5closes thespace between the lowermost outside plates 8, 8 of theupright tank walland the uppermost outside plates 9, 9 of the hopper bottom, with theresult that no air can leak into the-tank around the'base member 2 toimpair the suction on the tank.

The gate structure at the bottom of the hopper includes a gate casting1S surrounding the outlet opening in the bottom of the hoppcnand thiscasting has an autwardly extending flange 1'9surrounding, the same. Thelower ma'rginsof the lowermost outside plates 9 of the, hopper bottomare flanged, as at 20, and are suitably secured by rivets or otherwiseto the flange 19, as shown in Fig. 2.. This providesan air seal at thispoint. P p

The construction at each of the four corners of the hopper is as shown.in Fig. 3.

As there illustrated, the innerwall of the hopper is formed ofvertically arranged sectional plates 21, shaped to form a corner andsupported by the hook carrying memhere 6 at the side edges of suchplates. The

outside wall or casingat the corner includes the plate 8 at such cornerand one plate has a flanged side edge, as at 22, to overlap the edge ofthe adjacent late 8 and is riveted or otherwise secured thereto. Asshown in Fig. 2, the outside plates 8 in the'upright walls overlap eachother, as at 23, between the uprights 3, to form an air seal betweensuch edges of such plates; while the outside plates 9 in the hopperbottom overlap. as at 24:, between the inclined end members of thesupporting structure of the hopper bottom, to make an air seal atsuchpoints.

By the construction described, the tank make walls are made double, thatis, there is an inner wall against which contacts the material.discharged into the hopper and an outer wall, the latter being so, madeas to the tanks substantially ltight and thus adapt itself to thosetypes of systems which progress the material through the pipe line by asuction on the tank' The plates otthe t-wo'walls are spaced apart by,the interposed framework of the tank structure and supported bythat-"framework. 7 @ne of the walls'otl" the tankis-formedo't removableplates so that such'wall may be repaired when desired and, furthermore,

permit the building up of that wall" as the tank is installed; Theoutside walls being formed of rigid plates rigidly connected with theframework of the tank structure makes the entire unit supported by .thefour posts 1, 1, and thus allows build ing up of the innciiwallwithoutthe uscoftie'rods for the upright wall ofthe tank. This outsidewall being a supporting unit,

prevents the tank fromswaying and avoids the use of tie rods for thatpurpose as hereg tofore'made necessary. The inside plates 7,

ol the hopper bottoinaresuspended from the cross-members 25 of thatstructureas shown.

' lVl' ile I haveshown and described here in an ash tank or'hopperembodying the features of my l11V6I1t1OIl,lt is of course to beunderstood that the details of construe plates removably mounted on theframe? work of the tank structure, and means-associated with saidwallsrfor preventing air,

being drawn under suction,

2. A; tank, comprising an upright marginal wall and a bottom wall, saidwalls being formed of a plurality of sectional plates removably mountedon the framework of the tank strutcure, and means surrounding said wallsfor preventing air being drawn into the tank when placed under suction,A storage tank, comprising an up right marginal wall and a hopperbottom, said upright wall and hopper bottonr beinp; formed of aplurality of sectional plates removably engaged-with t e framework ofthe tank structure, and means surrounding said upright wall and hopperbottom for into the tank when placed preventing air being drawn into thetank plates engaged with the framework of the tank structure betweensaidwalls, the plates of one wall being rigidly secured to the frameworkto prevent air being drawn into the tank when the latter is placed undersuction, and the plates-of the other wall being reniovably engaged withsaid frame-- work. 7

5. A tank, compr sing inner and outer walls, spaced apart and bot-hbeing formed of plates engaged'with the framework of.

the tank between said walls, the plates of the inner wall beingremovablyv engaged with the framework, and the plates of the outer wallbeing rigidly engaged with the framework to prevent air being drawn intothe tank through the inner wall when the tank is placed under suction.

6. A tank, comprising inner vand outer walls, a framework between saidwalls, one of said walls being formed of a plurality of plates rigidlysecured to the framework, and the other wall being formed of pluralityof removable plates suspended from the framework.

7. A tank, comprising inner and outer walls, a framework between saidwalls and including upwardly extending and transverse members, one ofsaid 'walls being formed of a plurality of plates rigidly secured to theframework, and the other wall being formed of a plurality of removableplates suspended from the transverse mem bers.

8. A tank, comprising inner and outer walls, a framework between saidwalls including upwardly extending and transverse members, the outerwall being formed of a plurality of plates rigidly secured to theupwardly extending members, and the inner wall being formed of membershooked over the transverse members, and removable plates between andsupported by said hooked members. 7

9. A storage tank, comprising upright posts, a horizontal base frame atthe upper.

ends of said posts and supported thereby,

laterally spaced members resting on and extending upward from said baseframe, vertically spaced horizontal members extend ing between andsecured to said upright members, downwardly inclined members se-.

cured at their upper ends to said base frame, horizontal membersextending between said downwardly extending l'members, inner and outerplates secured to saidframework and forming the upright marginal walland hop per bottom of the tank, the outside plates being rigidly securedto theframework to prevent air being drawn into the tank when the latteris placed under suctiomandthe inside plates having removable connectionwith said framework.

10. A tank, comprising an upright mar-* ginal wall and a hopperbottom,saidlupright wall and hopper bottom being formed of a pluralityof sectional plates removably engaged with the framework offthe tankstructure, means surrounding sa d upright Y wall and hopper bottom forpreventing air being drawn into the tank when placed seal between saidupright wall and hopper and upright wall, respectively, for providing anair seal between such parts.

12. A tank, comprisin a horizontal base frame, an upright marginal wallrising from and supported by saidframe, a hopper bot tom hung from saidframe, said upright wall and hopper bottom both being formed of aplurality of inner and outer plates, the former being removably engagedwith the tank framework between the plates, the

framework to prevent passage of air into the tank when placed undersuction, and a gate casting surrounding the dis charge opening in thebottom of said hopper, thelowermost outer plates of said hopper beingflanged and secured to said casting for providing an air seal betweensuch parts.

Intestimonythat I! claim the foregoing as my invention, I affix mysignature'this' 9th day ofiDecember, A. D. 1921. I

- ARTHUR P. STE ON G,

'95 outer plates being rigidly secured to said ice I

